Regents Chemistry 
                                   
              Topic Review Packet 
                                   
                                   
                                   
           
           
           
           
           
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                             Table of Contents 
                                    
          Topic 1: Matter, Its Properties & Changes 
              Outline ……………………………………………………………………… 3 
              Practice Questions ………………………………………………………. 5 
          Topic 2: Atomic Concepts 
              Outline ……………………………………………………………………… 8 
              Practice Questions …………………………………………………….. 10 
          Topic 3: Periodic Table 
              Outline ……………………………………………………………………. 17 
              Practice Questions …………………………………………………….. 19 
          Topic 4: Formulas & Names, Equations, Moles,  
                  Molar Mass, & Types of Reactions 
              Outline ….………………………………………………………………… 25 
              Practice Questions ……….……………………………………………. 26 
          Topic 5: Bonding 
              Outline ………………………………………….………………………… 33 
              Practice Questions ……………………………………………….……. 35 
          Topic 6 Overview …………………………………………………….…….….. 42 
          Topic 6A: Heat & Temperature 
              Outline ……………………………………………………………….…… 43 
              Practice Questions …………………………………………………….. 45 
          Topic 6B: Kinetics & Equilibrium 
              Outline ……………………………………………………………………. 50 
              Practice Questions ……..……………………………………………… 51 
          Topic 7: Water & Solutions 
              Outline …………………..…..…………………………………………… 55 
              Practice Questions ………………………………………….…………. 56 
          Topic 8: Acids & Bases 
              Outline ……………………………………………………………….…… 61 
              Practice Questions ………………….…………………………………. 62 
          Topic 9: Organic Chemistry 
              Outline ……………………………………….…………………………… 66 
              Practice Questions …………………………………………….………. 67 
          Topic 10: Phases & Gases 
              Outline ………………………………………………………………….… 71 
              Practice Questions …………………………………………………….. 72 
          Topic 11: Electrochemistry (Oxidation-Reduction) 
              Outline ……………………………………………………………………. 75 
              Practice Questions …………………………………………………….. 76 
          Answer Key ……………………………………………………………………… 83 
           
           
           
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            Topic 1: Matter, Its Properties and Changes Outline 
          
         1. Matter is classified as a pure substance or a mixture of substances.  
         A pure substance (element or compound) has a constant composition 
         and constant properties throughout a given sample, and from sample 
         to sample.  
            You can use particle models/diagrams to differentiate among elements, 
            compounds, and mixtures. 
          
          
         2. The proportions of components in a mixture can be varied.  Each 
         component in a mixture retains its original properties.  Differences in 
         properties such as density, particle size, molecular polarity, boiling 
         point and freezing point, and solubility permit physical separation of 
         the components of the mixture.  
            Methods of separating mixtures include evaporation, filtration, distillation, 
            and chromatography. 
            Mixtures can be homogeneous or heterogeneous.  Solutions are always 
            homogeneous.  Heterogeneous mixtures are things like soil, fruit salad, 
            where the composition is NOT uniform throughout the mixture. 
          
          
          
         3. The structure and arrangement of particles and their interactions 
         determine the physical state of a substance at a given temperature and 
         pressure.  
            Know the states (phases) of the elements at STP; Br and Hg are the only 
            2 liquids,  the noble gases as well as N, O, F, H, and Cl are gases, the rest 
            are solids 
            Know the 7 elements that are diatomic in their natural states; “7-Up” or 
            “HOFBrINCl”. 
            Draw particle models of solids, liquids, and gases. 
          
          
         4.  A physical change results in the rearrangement of existing particles 
         in a substance; no new types of particles result from this type of 
         change.   A chemical change results in the formation of different 
         particles with changed properties. 
            Distinguish between chemical and physical changes based on whether 
            new substances form or not. 
          
          
          
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         5.  Properties can be physical or chemical.  Physical properties describe 
         those characteristics that can be observed with the senses or 
         measured.  Chemical properties describe how the substance interacts 
         with other substances.  
            Distinguish between chemical and physical properties.  
            One of the more useful properties is density.  The density equation is on 
            Table T; D=m/V. 
            Some common properties of the elements are found on Table S, such as 
            melting and boiling points. 
          
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